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新疆北部东天山十里坡地区近年来新发现了与玄武岩有关的自然铜矿化这一新类型。自然铜的赋矿地层-马头滩组中的赋矿玄武岩锆石 LA-ICPMS 年龄为307±4Ma,对应于晚石炭世,显示该套赋矿地层属于上石炭统。从该区自然铜赋矿火山岩所限定的时间看,成矿背景应属于后碰撞环境。东天山十里坡地区自然铜矿化的构造背景、成矿系统和矿化类型与峨眉山玄武岩自然铜矿化和美国基威诺铜矿床均存在差异,自然铜矿化的成因可能也存在差异。
In recent years, a new type of natural copper mineralization related to basalt has been newly discovered in the eastern slope of the eastern Tianshan Mountains in northern Xinjiang. LA-ICPMS dating of the ore-forming basalts in the Maotitan Formation, a natural copper-bearing strata, is 307 ± 4Ma corresponding to the Late Carboniferous, indicating that the ore-hosting strata belong to the Upper Carboniferous. Judging from the time limited by natural copper-bearing volcanic rocks in this area, the metallogenetic background should belong to the post-collision environment. The tectonic setting, metallogenic system and mineralization type of natural copper mineralization in Shilipo area of east Tianshan are different from those of natural copper mineralization in Emeishan basalts and the Kivuowo copper deposit in the United States. There may be differences in the natural copper mineralization.